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USP-40 Standard 99% D-Cycloserine 68-41-7

Name: USP-40 Standard 99% D-Cycloserine 68-41-7
Brand: HyperChem
SKU: pr2509082568
Price: 720 USD
Availability: InStock

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CAS No.:

68-41-7

Grade:

Pharmaceutical Grade

Content:

99%

Port:

SHANGHAI

Brand:

HyperChem

Packaging:

1kg/Bag, 25kg/drum

Sample Available:

Yes

Price valid (until):

2025-10-08

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Hangzhou Hyper Chemicals Limited

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

10 days

Qualification:

Main Products:

Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

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Product Details
Seller Information
Inquiry History

Description

Name	D-Cycloserine
CAS number	68-41-7
Description	Glycyrrhizic acid is a key bioactive triterpenoid saponin compound, primarily extracted from the roots of the licorice plant (Glycyrrhiza glabra).
Structural formula
Molecular Formula	C3H6N2O2
Molecular Weight	102.09 g/mol
Appearance	White powder
Quality Standard	99%
Storage Condition	Cool dry place( away from the light)
Shelf Life	>2 years if stored properly
Sample package	Aluminium foil bag
Commercial package	Aluminium Tin, Fiber drum
Origin	China

D-Cycloserine More Info

Chemical Identity

D-Cycloserine is a broad-spectrum antibiotic and a cyclic derivative of the amino acid D-alanine. It is identified by the CAS registry number 68-41-7, which precisely distinguishes it from its stereoisomer, L-cycloserine, and other compounds in chemical registries and commercial catalogs.

Mechanism of Action

The primary antibiotic activity of D-Cycloserine stems from its ability to inhibit bacterial cell wall synthesis. It functions as a structural analogue of D-alanine, competitively inhibiting two crucial enzymes: alanine racemase, which converts L-alanine to D-alanine, and D-alanyl-D-alanine ligase, which incorporates D-alanine into the pentapeptide precursor of the peptidoglycan cell wall. This dual inhibition disrupts the construction of the bacterial cell wall, leading to cell death.

Medical and Therapeutic Applications

Originally developed to treat tuberculosis, particularly multidrug-resistant strains, D-Cycloserine is now more commonly used as a second-line agent. Beyond its antimicrobial use, it has gained significant attention in psychiatric research for its role as a partial agonist of the NMDA receptor in the brain. This neuroactive property has led to its investigation as an adjunctive treatment for enhancing extinction learning in conditions such as phobias, post-traumatic stress disorder (PTSD), and social anxiety.

Pharmacological Considerations

The clinical use of D-Cycloserine is limited by its potential to cause dose-related neurological side effects, including dizziness, drowsiness, and in severe cases, seizures and psychiatric disturbances such as anxiety or confusion. Therefore, therapeutic drug monitoring is often recommended to maintain levels within a narrow therapeutic window. Its application in mental health treatments typically involves very low, intermittent dosing timed specifically with psychotherapy sessions to facilitate cognitive outcomes.

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FAQ

Q1. Can I get a free sample?

We can send you a samll free sample, and you only need to pay for the shipping cost.

Q2. What is the HyperChem payment term?

T/T in advance
LC at sight
DP at sight

Bank transfer

PayPal

Bitcoin...

Q3. What is HyperChem shipment policy?

Our policy is to strive for the quickest shipment time possible.

For ready stock samples, they are usually shipped within 3 working days after payment received.
For non-ready stock, please contact HyperChem sales team to negotiate.

Q4. What is HyperChem shipment term?

By Express
FedEx UPS DHL EMS
Fast: 3-7 days around, high cost, door to door service

By Air
Suitable for more than 50kg
Fast: 3-7 days, hight cost, port to port, professional broker needed

By Sea
Suitable for more than 500kg
Fast: 7-45 days, low cost, port to port, professional broker needed

We will always attempt to utilize the quickest and most affordable way for customers to receive orders. And follow -up with customers via email for all shipment details as well as updated track information until it arrives without damage.

Q5. What HyperChem will provide after shipment?

For sample orders:
After shipment is done, an timely email including:

1. Track details (Fedex /TNT/DHL/EMS Track number)
2. Packaging photo
3. COA, MSDS, etc
4. Dispatch date & Estimated arriving time
5. Shipping invoice

For commercial orders
A full set of shipment documents as well as package photos can be provided in scan-copy and original, to help customers complete the customs clearance process.

Company Profile

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to cater to the requirements of our diverse range of clients.

Among them, our key client industrial sectors around the global are:

Pharmaceuticals
Nutrition Ingredients/ Dietary supplements
Cosmetic Ingredients
Food Ingredients
Veterinary API
Agriculture fertilizer
Custom Synthesis lab supply

HyperChem provides to its wonderful and honorable clients comprehensive purchasing and distribution services which ensure that we are delivering the right generic, raw, or customized product, make sure that we are delivering it at the right time, ensure that it is delivered in the specified amount, and in the right kind of packaging to clients and customers of all types of industries irrespective of their size of operation.

ECHEMI Editorial Reference

D-Cycloserine is an analog of the amino acid D-alanine.Target: AntibacterialD-Cycloserine selectively potentiated the duration of motor cortical excitability enhancements induced by anodal tDCS. D-Cycloserine alone did not modulate excitability [1]. Participants receiving d-cycloserine in addition to exposure therapy reported significantly less social anxiety compared with patients receiving exposure therapy plus placebo. Controlled effect sizes were in the medium to large range [2]. Chr
Solid
D-cycloserine is a 4-amino-1,2-oxazolidin-3-one that has R configuration. It is an antibiotic produced by Streptomyces garyphalus or S. orchidaceus and is used as part of a multi-drug regimen for the treatment of tuberculosis when resistance to, or toxicity from, primary drugs has developed. An analogue of D-alanine, it interferes with bacterial cell wall synthesis in the cytoplasm by competitive inhibition of L-alanine racemase (which forms D-alanine from L-alanine) and D-alanine--D-alanine ligase (which incorporates D-alanine into the pentapeptide required for peptidoglycan formation and bacterial cell wall synthesis). It has a role as an antitubercular agent, an antiinfective agent, an antimetabolite, a metabolite and a NMDA receptor agonist. It is an organooxygen heterocyclic antibiotic, an organonitrogen heterocyclic antibiotic and a 4-amino-1,2-oxazolidin-3-one. It is a conjugate base of a D-cycloserine(1+). It is an enantiomer of a L-cycloserine. It is a tautomer of a D-cycloserine zwitterion.|Antibiotic substance produced by Streptomyces garyphalus.|Cycloserine is a broad spectrum antibiotic used as a second line agent for treatment of drug resistant tuberculosis, always in combination with other antituberculosis agents. Cycloserine is appears to have little or no hepatotoxic potential, but it is usually used in combination with agents that are known to be hepatotoxic, and its role in the reported cases of liver injury with combination therapy cannot always be excluded.|Cycloserine is an analogue of the amino acid D-alanine with broad-spectrum antibiotic and glycinergic activities. D-cycloserine interferes with bacterial cell wall synthesis by competitively inhibiting two enzymes, L-alanine racemase and D-alanine:D-alanine ligase, thereby impairing peptidoglycan formation necessary for bacterial cell wall synthesis. This agent may be bactericidal or bacteriostatic, depending on its concentration at the infection site and the susceptibility of the organism. In addition, D-cycloserine is an excitatory amino acid and partial agonist at the glycine binding site of the NMDA receptor in the central nervous system (CNS); binding to the central NMDA receptor may result in amelioration of neuropathic pain.

Certificates

Basic Info

Product Name:

(+)-Cycloserine

Other Name:

3-Isoxazolidinone,4-amino-,(4R)-;3-Isoxazolidinone,4-amino-,(+)-;3-Isoxazolidinone,4-amino-,(R)-;(4R)-4-Amino-3-isoxazolidinone;D-4-Amino-3-isoxazolidone;Cyclo-D-serine;Oxamycin;d-4-Amino-3-isoxazolidinone;D-4-Amino-3-isoxazolidinone;(+)-Cycloserine;α-Cycloserine;Cycloserine;Orientomycin;Cyclorin;Farmiserina;Tisomycin;Miroseryn;Wasserina;Novoserin;D-Cycloserine;(R)-(+)-Cycloserine;(R)-Cycloserine;D-CS;Seromycin;(R)-4-Amino-3-isoxazolidinone;Closerin;Micoserina;PA 94;Closina;NSC 154851;NSC 76029;(R)-4-Aminoisoxazolidin-3-one;(4R)-4-Amino-1,2-oxazolidin-3-one

CAS No.:

68-41-7

Molecular Formula:

C3H6N2O2

InChIKeys:

InChIKey=DYDCUQKUCUHJBH-UWTATZPHSA-N

Molecular Weight:

102.09

Exact Mass:

102.09

BRN:

80798

EC Number:

200-688-4

UNII:

95IK5KI84Z

NSC Number:

756712

DSSTox ID:

DTXSID8022870

NCI Thesaurus Code:

C47466

Color/Form:

CRYSTALS|WHITE TO PALE YELLOW, CRYSTALLINE POWDER

ATC Code:

J - Antiinfectives for systemic use

HScode:

2934999090

Categories:

Antispasticity Agents

Characteristics

PSA:

64.4

XLogP3:

-1.5

Appearance:

white to off-white powder

Density:

1.3±0.1 g/cm3

Melting Point:

155-156 °C (decomp)

Boiling Point:

267ºC

Refractive Index:

1.475

Water Solubility:

H2O: soluble

Storage Conditions:

−20°C

Specific rotation:

111 º (C=5, 2N NaOH)

Odor:

ODORLESS OR HAS FAINT ODOR

PH:

AQ SOLN HAVE PH OF ABOUT 6

Experimental Properties:

FORMS SALT WITH ACIDS OR BASES|HYGROSCOPIC

See More (+)-Cycloserine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store below 40 deg C (104 deg F), preferably between 15 and 30 deg C (59 and 86 deg F), unless otherwise specified by manufacturer. Store in tight container.

See More (+)-Cycloserine Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

Location:
Rm. 803, Tower 4, LOFT49 Creative City Pioneer Zone, No.88 Jiru Rd. Gongshu Dist., Hangzhou, 310015 ZJ, China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10 days

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2013

Company Certificates
- Certification Report by Bureau Veritas
About HyperChem

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to meet the needs of a diverse range of pharmaceutical cosmetics ingredients and nootropic supplements companies worldwide.

Our Competitiveness

One-stop supply

Wide Range Of products including pharmaceutical, Cosmetic Ingredients and nootropic supplements

Among all the pharmaceuticals,

90% of them with GMP certificates,

85% of them with DMF files and

50% of them passed FDA approval,

30% get CEP certificate

20% are new R&D products.

Custom Repackaging Service

We can efficiently repackage your material into sample sizes, custom batch-specific sizes, or semi-bulk package sizes according to your specifications. And ensures the product is packaged in a quality-controlled environment and will maintain its integrity throughout every stage of the process.

Quality Control/Quality Assurance

HyperChem is committed to delivering on its promises of top-quality products with verified quality data.

All materials are vigorously inspected by the factory and/or outsourced analytical laboratories to ensure each and every lot meets or exceeds our reference standards.

Trade assurance service with 100% payment protection, It is best achieved by delivering products and services 100% right the first time, on time, every time.

Professional

Transparent Communication

Fast Reaction,

Professional Suggestion

Beyond Expectation.

We have exclusive partnerships with research and production facilities across the country and we offer varied pharmaceutical services in the most cost-efficient way. The production facilities are GMP, WHO-GMP, EU GMP and US FDA approved and are backed by strong regulatory support such as Dossier, DMF, Tech Pack and relevant Stability studies for regulatory filings.

Inquiry History

4 Inquiries

Country	Product	Purchase Quantity	Date Posted
South Korea	Cycloserine	1 KG	Sep 7, 2026
United States	D-Cycloserine powder	1 KG	Jan 23, 2026
United States	Pharm grade d-cycloserine powder 68-41-7	1 KG	Sep 7, 2025
Pakistan	Cycloserine	25 KG	Feb 6, 2025

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USP-40 Standard 99% D-Cycloserine 68-41-7

Product Details

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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